[INFO] cloning repository https://github.com/RLynx0/lynter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RLynx0/lynter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRLynx0%2Flynter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRLynx0%2Flynter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 91400e701d25132bc815e6c5d926f32e8ba29d68
[INFO] checking RLynx0/lynter against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRLynx0%2Flynter" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/RLynx0/lynter
[INFO] finished tweaking git repo https://github.com/RLynx0/lynter
[INFO] tweaked toml for git repo https://github.com/RLynx0/lynter written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/RLynx0/lynter on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/RLynx0/lynter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3ea3ba9cff25b5d41c186ffb5e4277722d74e35b9117ea7bac7dad7043edf006
[INFO] running `Command { std: "docker" "start" "-a" "3ea3ba9cff25b5d41c186ffb5e4277722d74e35b9117ea7bac7dad7043edf006", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ea3ba9cff25b5d41c186ffb5e4277722d74e35b9117ea7bac7dad7043edf006", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ea3ba9cff25b5d41c186ffb5e4277722d74e35b9117ea7bac7dad7043edf006", kill_on_drop: false }`
[INFO] [stdout] 3ea3ba9cff25b5d41c186ffb5e4277722d74e35b9117ea7bac7dad7043edf006
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c56375746dd0fb0a4920ffbc5713ae1e34545ae3ec1d4568d2b60dd231e1d1f
[INFO] running `Command { std: "docker" "start" "-a" "9c56375746dd0fb0a4920ffbc5713ae1e34545ae3ec1d4568d2b60dd231e1d1f", kill_on_drop: false }`
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]    Compiling thiserror v1.0.46
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]    Compiling syn v2.0.28
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking crossterm v0.27.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.46
[INFO] [stderr]     Checking lambda_interpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `ExpectedCloedParen` is never constructed
[INFO] [stdout]   --> src/interpreter/parser.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum Error {
[INFO] [stdout]    |          ----- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 18 |     ExpectedCloedParen,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `loop_mapper` is never used
[INFO] [stdout]    --> src/lambda.rs:148:8
[INFO] [stdout]     |
[INFO] [stdout] 148 | pub fn loop_mapper<S>(s: &S) -> Result<Exp<S>, Infallible>
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/interpreter.rs:71:22
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn interpret(&mut self, input: &str) -> Result<Feedback, Error> {
[INFO] [stdout]    |                      ^^^^^^^^^                         ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn interpret(&mut self, input: &str) -> Result<Feedback<'_>, Error> {
[INFO] [stdout]    |                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/interpreter.rs:107:16
[INFO] [stdout]     |
[INFO] [stdout] 107 |     fn command(&self, command: &str) -> Result<Feedback, Error> {
[INFO] [stdout]     |                ^^^^^                           ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                |
[INFO] [stdout]     |                the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 107 |     fn command(&self, command: &str) -> Result<Feedback<'_>, Error> {
[INFO] [stdout]     |                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/interpreter/bimap.rs:21:17
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn iter(&self) -> hash_map::Iter<K, V> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn iter(&self) -> hash_map::Iter<'_, K, V> {
[INFO] [stdout]    |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Exp<S>, Infallible>
[INFO] [stdout]    --> src/lambda.rs:151:1
[INFO] [stdout]     |
[INFO] [stdout] 151 | / {
[INFO] [stdout] 152 | |     Ok(Exp::Sym(s.clone()))
[INFO] [stdout] 153 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Exp<S>, Infallible>
[INFO] [stdout]    --> src/lambda.rs:152:5
[INFO] [stdout]     |
[INFO] [stdout] 152 |     Ok(Exp::Sym(s.clone()))
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lambda_interpreter` (bin "lambda_interpreter") due to 2 previous errors; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variant `ExpectedCloedParen` is never constructed
[INFO] [stdout]   --> src/interpreter/parser.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum Error {
[INFO] [stdout]    |          ----- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 18 |     ExpectedCloedParen,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `loop_mapper` is never used
[INFO] [stdout]    --> src/lambda.rs:148:8
[INFO] [stdout]     |
[INFO] [stdout] 148 | pub fn loop_mapper<S>(s: &S) -> Result<Exp<S>, Infallible>
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/interpreter.rs:71:22
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn interpret(&mut self, input: &str) -> Result<Feedback, Error> {
[INFO] [stdout]    |                      ^^^^^^^^^                         ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn interpret(&mut self, input: &str) -> Result<Feedback<'_>, Error> {
[INFO] [stdout]    |                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/interpreter.rs:107:16
[INFO] [stdout]     |
[INFO] [stdout] 107 |     fn command(&self, command: &str) -> Result<Feedback, Error> {
[INFO] [stdout]     |                ^^^^^                           ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                |
[INFO] [stdout]     |                the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 107 |     fn command(&self, command: &str) -> Result<Feedback<'_>, Error> {
[INFO] [stdout]     |                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/interpreter/bimap.rs:21:17
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn iter(&self) -> hash_map::Iter<K, V> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn iter(&self) -> hash_map::Iter<'_, K, V> {
[INFO] [stdout]    |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Exp<S>, Infallible>
[INFO] [stdout]    --> src/lambda.rs:151:1
[INFO] [stdout]     |
[INFO] [stdout] 151 | / {
[INFO] [stdout] 152 | |     Ok(Exp::Sym(s.clone()))
[INFO] [stdout] 153 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Exp<S>, Infallible>
[INFO] [stdout]    --> src/lambda.rs:152:5
[INFO] [stdout]     |
[INFO] [stdout] 152 |     Ok(Exp::Sym(s.clone()))
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lambda_interpreter` (bin "lambda_interpreter" test) due to 2 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "9c56375746dd0fb0a4920ffbc5713ae1e34545ae3ec1d4568d2b60dd231e1d1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c56375746dd0fb0a4920ffbc5713ae1e34545ae3ec1d4568d2b60dd231e1d1f", kill_on_drop: false }`
[INFO] [stdout] 9c56375746dd0fb0a4920ffbc5713ae1e34545ae3ec1d4568d2b60dd231e1d1f
